Tapping device.



4la. PEREMI. TYAPPINGDEVICE.

APPLICATJON FILEDVSEPT. 23, 1915.'

Patented Apr. 18,1916.

2 SHEETS-SHEET 2- A /wmm'e 'mand/geremz,

' EDMUND PEREMI, or NEWYORK, N. r.

'rAPrING DEW-on.

Specification of L'etters'Patent.

Patented Apr. 1s, 191e.

Application led S tember 23, 1915. Serial No. '52,166. i l

To all whom t may concern.' y

Be it known that I, EDMUND PEREMI, a citizen of the Unitedv States, and a'resident of the city of New York, borough of Brooklyn, in the county ofKings and State of Xew York, have invented' a new and Improved .Tapping Device, of which the-following is a full, clear, and exact description. f y

The invention relates to hand tools .and its object is toprovide a new and improved tapping device for the use of mechanics and ar. ranged to permit the convenient and quick tapping of a hole.

In order to. accomplish the desired result, use ismade vof a casing provided at one end with a handle, a spindle mounted to turn and to slide 1n the s aidcasing and having one end extending bevond the other end of the said casing, a chuck for holding a tap and secured to the said outer'end of the spindle,

spaced clutch. members secured on the said spindle within the casing, and driven clutch members mounted to rotate loosely on the spindle within the casing intermediate the said spindle clutch members, the said driven clutch members rotating in opposite directions and vbeing adapted to be' vengaged by the said spindle clutch members on shifting the spindle first in onedirecton, then in the opposite direction.v

A practical embodiment of the invention is represented in the' accompanying drawings forming a part bf this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a longitudinal central section of the tapping device;- Fig. 2 is a cross section of the terminal of thc'fixed driving shaft; Fig. 3 isa cross section of the tapping device on the line 3 3 of Fig. 1; Fig. 1 is a similar-'view of the same on the line 1 -1 ofFig. 1; and Fig. 5 is a side elevation of the spindle provided with the chuck and spindle clutch members.

The tapping device is mounted on a casing 10, preferably made cylindrical and provided at its endslwith heads 11 and 12,` of which the head 12 is provided with a hollow handle 13,. In the heads 11 and 12 is mounted tov turn and to slide a spindle 14. extending through the headgll to the outside, the spindle carrying at its outer end a chuck 15 for holding a tap 16, as indicated in Fig. 5. Onthe .spindle `l-f within the casing 10 are secured spaced ,clutch mem# bers 17 and 18 adapted to be moved into engagement with driven clutch members 19, 20 formed or secured on thefliubs of bevel gear wheels 21 and 22 mounted to rotate loosely on the spindle 14 intermediate the clutch members 17 and 1S. The bevel gear wheels 21 and- 22 have their teeth facing each other and the said bevel gear wheels .21 and 22 are in mesh with the opposite sides of'a bevel pinion 23 having its shaft 21 provided with a polygonal terminal' 25 engaging a socket 26 on one end 'of a flexible drive shaft 27 adapted to be connected at its other end 2S with a motor for rotating the shaft 27.- The rotary motion of the shaft 27 is transmitted by the shaft .24 to the bevel pinion 23, which latter rotates the bevel gearfwheels 21 and 22 in opposite directions.

The flexible shaft 27 extendsthrough a rliexible casing 29 provided at one end withv a bearing 30 in which rotatesthe socket 26 inwardly extending V'annular flanges 35 and 36 against which abut the backs ofthe bevel gear wheels 21 and 22. In order to prevent' binding of the `bevel gear wheels 21 and 22 on the pinion 23, use.' is made of a spacing block 3 7 fastened by screws 3S to the casing 10. The facesof the gear wheels 21 and abut against the sides of the block 37 and vthrough the latter extends the spindle 14 thus' providing aA vcentral bearing for the The spindle clutch members '17.218 'are "spaced apart relatively to the. clutch-.inem` bers 19 and 20 so that in one positionvofthe spindle 14 both clutch members are out of mesh with their driven clutch members 19 l and 20. lVhen it is desired 4to tap a hole the tap 16 is engaged with the hole and then the operator presses on the handle 13 to shift the casing 10 on the spindle 14. toward the chuck 15 whereby the clutch member 17 is moved into engagement with ,the clutch member/19 and as the latter rotates continually a rotary motion is given to the splndle and which screws into a nipple 31 attached :to the casing 10` '.lhe other end ofthe hons- L 8o ible shaft with the -l to anse the tap 16 to tap the hole. When bis hasy been done, the operator pulls on the hurdle lil .so that the casing is shifted lengthwise on the spindle 1l away from the rbnrt: l whereby the clutch member 17 is moved ont of' engagement with the clutch member 19 and the spindle l-t comes to rest. in: a further movement of the easing 10 to the lett. the clutch ineinber 1S moves into (agement .vith the clutchl nieniber 20 so thai the spindle 1l is now rotated in an opposite direction, and the. tap 16 unserews iiwll' ont el" the tap hole.

Vln order to hold the spindle 1'l against acridenial nnwement when in either a neutral, loi-ward or reversed position) use is made of lin-e'amnil.-ir grooves gli), l1 and 42, formed on the spindle, preferably near the end extending through the head 1'2. In the head i@ mounted a pawl 43 pressed on by a spring lll; to engage the paw] with one ol' the said grooves 40, 41 and 42 acherding to the position of the spindle, to prie-.ent

e od that the pawl 13 readily yields e xrefs-nre exerted against thespindle il in a lengthwise direction, as previously nienione l. to allow shifting of the spindle l l in the heads 11 and 12' of the easing 10. The tapping device shown and described is verf.' simple and durable in construction and can be readily carried in the hand by an operator for conveniently and quickly tapping hole and running the tap out of the tapped hole. The compact form of the device permits its use in places where wrenches and like tools employed for turning a tap cannot well be employed. y

filavi'ng thus described my invention, 1

claim as new and desire to secure by Letters latent:

l. 1n a hand tapping tool7 the combina-` tion otra casing ha ving` removable beads, one ol" which is provided with aihandle, a spindle mounted to rotate and to slide in the said easing. one end ol the spindle extending 'through a casing head to the outside ot the raising, a chuck on the said outer end of the :spindle and adapted to carry a tap, spaced clutch nnembers on the said spindle within the easing` beveled gear wheels mounted loosely on the said spindle within the easing intermediate the said spindle clutch members7 the hub oi the said gear wheels being provided with clutch members adapted to be en rafed by thel said spindle clutch n1embers. a pinion in mesh with both gear wheels and dieurnaled in the said casing, a flexible shait`r a coupling connecting the said fleX- said pinion, a bearing 'tor the said flexible shaft and detachably connected with the said casing,I and means iior lockinggthe spindle against accidental movement.

,2. in a hand tapping tool, the combinafidental shifting of the saine. It'

tion of a casing having heads provided with flanges extending into the casing, the inner` ends of the Vflanges being spaced apart, a handle on one ot' the heads of" the casing, a spindle mounted to rotate and to slide in the said casing, one end of the spindle extending to the outside of the casing, chuck on the said'outer end of the spindle and adapted to carry a'tap, spaced clutch ineinbers on the said spindle within the casing,

-gear wheels loose on the spindle within the flanges extending into the casing, the inner ends of the Hanges being spaced apart, a spindle mounted to rotate and to Slide lengthwise in the said heads, a chuck on one outer end of the spindle for holdinga tap, bevel gear wheels mounted to rotate loosely on the said spindle and having their backs abutting against the inner ends of the said flanges` the said gear .wheels being provided with clutch members. spindle clutch members secured on the said spindle and adapted to move into engagement with the said bevel gear wheel clutch members, a bevel pinion in mesh with both bevel gear wheels, a bearing block attached to the casing and through which extends the said shaft, the faces of the bevel gear wheels abutting against the vsaid bearing block, a shaft tor the said bevel pinion and having one end journaled in the said bearing block, and a driven shaft connected with the said pinionshaft.

4. 1n a. hand tapping tool, the combina,- tion oit a easing having heads provided with flanges extending into the casing7 the inner ends of the flanges being spaced apart1 a spindle mounted to rotate and to slide lengthwise in the said heads, ay chuck on one outer end ot the spindle for holding a tap, bevel gear wheels vmounted to rotate loosely on the said spindle and having their backs abutting against the inner ends ot the said iiangesr` the said gear wheels being provided with clutch members, spindle clutch inembers secured on the said spindle and adapted to move into engagement with the said bevel gear wheel clutch members7 a bevel pinion in mesh with both bevel gear wheels, a bearing block attached tothe casing and through which extends the said shaft, the faces ot' the said bevel gear wheels abutting against the said bearing block, a shaft lfor the said bevel pinion and having one end journaled in the said bearing block, the other end of the pinion shaft bein'gpol-ygonal, a driven naine to this specification in the presence of huft having atl one end adsocizket1 engaged two subscribing witnesses.

yl the Said po ygonal en o t-e pinion t ,shaft, and a bearingvfoi' the said soolget end EDMUND Y I i 5 ofthe driven shaft and attached to the said Vitnesses: I

casing. THEO. GI HOSTER,

In testimony whereof I hafve signed' my PHILn D. RoLLHAUs. Y 

